Search a number
-
+
12817049 = 72379609
BaseRepresentation
bin110000111001…
…001010011001
3220010011200112
4300321022121
511240121144
61134414105
7213641330
oct60711231
926104615
1012817049
117264703
124361335
132869b6b
1419b8d17
1511d299e
hexc39299

12817049 has 8 divisors (see below), whose sum is σ = 15285120. Its totient is φ = 10508256.

The previous prime is 12817027. The next prime is 12817069. The reversal of 12817049 is 94071821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12817049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12817069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39644 + ... + 39965.

It is an arithmetic number, because the mean of its divisors is an integer number (1910640).

Almost surely, 212817049 is an apocalyptic number.

It is an amenable number.

12817049 is a deficient number, since it is larger than the sum of its proper divisors (2468071).

12817049 is an equidigital number, since it uses as much as digits as its factorization.

12817049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79639.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12817049 is about 3580.0906413106. The cubic root of 12817049 is about 234.0252304351.

The spelling of 12817049 in words is "twelve million, eight hundred seventeen thousand, forty-nine".

Divisors: 1 7 23 161 79609 557263 1831007 12817049